Improvement in meters



2Sheets--Sheefl. THOMAS COOK 8L JOHN WATSON.

Improvement in Meters.

N0. 114,267. Patgnted May 2,1871.

Irwanlvru )fneaded I 4; MM

2 Sheets'--Sheet 2-. THOMAS COOK & JOHN WATSON.

Improvement in Meters.

No. H4,2-67. Patefited May 2.1871.

Inventors aura sale new arm.

THOMAS 000K, or OLD KENT ROAD, AND JOHN wATsON, or vIoToRIA oHAMBnRs, WESTMINSTER, AssIeNOns To FLUID-METER COMPANY, or LONDON, ENGL ND.

Letters Patent No. 114,267, dated May 2, 1871.

IMPROVEMENT IN METERS.

The Schedule referred to in these Letters Patent and making part of the same.

Be itknown that we, THoMAs Coomof Old Kent Road, int-he county of Surrey, Engineer, and-JOHN WATSON, of Victoria Chambers, Westminster, in the 1 county ofMiddlesex, Engineer, both in that part oi'the United Kingdom of Great Britain and Ireland known as England, have invented new and useful Improvements'in Apparatus for Measuringthe Flow of Gas and other fluids, also Applicable for Producing and Applying Motive Power and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a. part of this specification and to the letters and figures of reference marked thereon.

Our invention relates to an improved apparatus for operating as a motive power engine by use of gas, steamywater, or other fluid, and which is'al'so adapted for measuring such gas or fluid when necessary or desirable.

V In carrying out the invention we provide a closed chamber, into which the gas, water, or other fluid to be measured is introduced by a suitable pipe. The top side of this chamber is provided with three or more passages for the exit of the gas orwater, which passages or ports are placed in a circle, and lead from the chamber in an inclined direction at any suitable angle,

and Open out beneath a wheel placed horizontally and p resting on the top of the closed chamber. This wheel is mounted on a vertical axis, and its under surface is provided with a number of cells or recesses of suitable form and size formednear the circumference of the wheel. These cells, when the wheel is rotated, will pass successively over the inclined ports above mentioned, so that when gas, water, or other' fluid under pressure is projected from the closed chamber through the inclined ports'it will fill the cells contained in the wheel andat the same time rotate the same by impinging on the sides of the cells.

The wheel is inclosed in a suitable casing provided with an escape-pipe, and as, in order to escape, the gas or water must pass from under the wheel, the latter will, when rotated, be lifted completely off the surface on which it rests when not in motion, and will be supported only on a film of the fluid to be measured and forming the motive power,'thus reducing the friction to a minimum.

The number of revolutions of the wheel and consequently the flow of gas or water is registered by a suitable indicator, and we apply pallets or blades to the upper surface of the wheel to check its too rapid;

rotation if necessary. p

In order to cause the wheel to rotate in a reverse direction we provide additional ports acting either on the same circle of cells in the wheel (if these are rectangular cavities) or on another series formed within the first. These additional ports are inclined in the Description of Drawing.

Figure 1 of the drawing shows a central vertical section of the apparatus;

Figure 2 is a part plan of the under surface of the wheel; while Figure 3 is a section of the same and of the gas, water, or other chamber taken on line '1 2,.fig. 2, showing the direction in which the fluid issuing from the ports acts on the cells inthe wheel.

Figure i is an under-side view of the top I) of the closed chamber above which the wheel rotates, showing the disposition of the ports therein.

Of course when used as a meter suitable indicator gearing would be employed in connection with, or be substituted for, the toothed gearing shown in the drawit is a horizontal wheel, on the under surface of which one or more series-or circles of cells, a, are formed near the circumference of said wheel A. This wheel is provided with a vertical axis, j; and its under surface rests upon the top of a closed chamber, B, into which the gas, water, or other fluid to be measured is first introduced by a passage, 0, the'wheel A being inclosed in a suitable casing, D.

Through the top b of this chamber B three or more passages or ports, 2, are formed for the exit of the gas" or other fluid from chamber B. These ports e are placed in a circle corresponding to the circle of cells a in the wheel A, directly beneath which they open out,

said ports leading from the chamber B in an inclined direction, as shown in fig. 3.

It will thus be seen that when the gas or other fluid under pressure to be measured or constituting the motive power escapes from the chamber B through the inclined ports 0 it will fill the cells a, and at the same time rotate the wheel A by impinging on the sides of cells a as they pass in succession over the ports I). As there is no other outlet from the cells a the steam or other fluid, in order to escape from under the wheel A, must pass between the top of. the chamber B and the under surface of the wheel.- when rotated by the steam or other fluid, will be thus lifted completely ofl the top of chamber B, (the surface upon which it rests when stationary,)and will be supported only on a filmof fluid as it escapes from The latter,

ing been previously ascertained by experimenter otherwise, the nnmbe'rof revolutions of wheel A, and consequently the flow of fluid, is registered by any suitable indicator connected to axis f of wh rel A in place of the gearingshown.

The casing or chamber D inclosiug the wheel A is furnished with an escape passage, (1, for the exit of the fluid. Any suitable gearing for transmitting power may be connected to the axisjfof wheel A, as shown, or in any other convenient manner. 7

In order to reverse the motion of the engine by causing the wheel A to rotate in the contrary direction to that indicated by the arrow in fig.'4, additional ports 9 are provided in the top b of chamber B, inclined in the reverse direction to the ports 0 first described. The steamer other fluid when caused to issue from these ports g willact on a second circle of cells formed in wheel A within the circle of cells a, and inclined in the contrary direction thereto, the reversing ports g being also formed nearer the center of Witnesses:

plate b to coincide with the additional circle of cells;

or the steam may act on the same circle of cells for rotating wheel A in either direction when said cells are made in the form of rectangular cavities, as shown at a, figs.- 2 and 3.

The exit of steam through ports 0 and gis governed by means of a plate, Ii, which, when in the line posi+ tion shown in fig. 4, closes ports g, and at the same time opens a passage for the steam through the other set 2, and vice ce'rsw when' moved to the dotted position.' The position of this plate his adjusted by hand by any suitable device.-

What we claim as our invention, and desire to secure by Letters Patent, is

The improved apparatus herein described, consisting of the'horizontal wheel A provided with cavities or cells on its under side, the reversely-inclined ports c and g, plate 72, and easing D, substantially as shown and described.

THOMAS COOK.

JOHN WATSON. J O. DEWEY, W. D. Woon. 

